Re: [Haskell-cafe] Need help - my haskell code is over 50 times slower than equivalent perl implementation

On Tue, Jun 24, 2014 at 12:29:38PM -0400, Brandon Allbery wrote:

On Tue, Jun 24, 2014 at 12:25 PM, C K Kashyap wrote:

...

I used unsafeInterleaveIO after I ran into "too many open file handles" error.

That all by itself makes me think your problem is elsewhere and unsafeInterleaveIO is just covering it up.

Yes, it's doing lazy IO.